Cisco Nexus 2k EPLD upgrades question.

Looking to deploying 3 x N2K-C2248TP-1GE (2ps 1fan) 4 x10GE slot and 48 x 10/100/1000, Rather than a 6509. I'm hesitant with those is the maintenance aspect. While ISSUs don't necessarily impact the 2248, EPLD upgrades would. Do you know how upgrades are implemented on the 2248s? Is it via the host N7K's own epld process?